* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    position: relative;
}

#app {
    width: 100vw;
    height: 100vh;
    .main-table {
        margin: 20px 0;
    }
    .operate {
        display: flex;
        justify-content: space-around;
        align-items: center;
        > i {
            cursor: pointer;
        }
    }
}
